The number of protons in an element will be the same regardless of the isotope or ion. To have a different number of protons would change what type of element it is. So, it is not necessary to say "how many protons does calcium-41 have?" because it is the same as saying "how many protons does calcium have?" The answer is the same in any case, the same as the atomic number, 20.
Osmium has as many protons as it needs
2 protons
It has 26 protons.
Bohrium has 107 protons.
26 protons
39 protons
how many protons does the carbonate ion have?
Beryllium has 4 protons
Oxygen has eight protons.
Livermorium has 116 protons.
None -- all protons are protons, which are different from neutrons.
Californium has 98 protons.